code: def test_model_transform_matrix(camera):
      model_transform_matrix = np.random.default_rng().random((4, 4))
      camera.model_transform_matrix = model_transform_matrix
      assert np.all(
          camera.model_transform_matrix == model_transform_matrix
      )
  
imports: import io
  import numpy
  import pytest
  import pyvista
label_desc: Use image node_id 8 for calling a global function with example usage: test_model_transform_matrix(camera) without return types